/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2019 iText Group NV
 * Authors: Balder Van Camp, Emiel Ackermann, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details. You should have received a copy of the GNU Affero General Public License along with this program; if not,
 * see http://www.gnu.org/licenses or write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL: http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions of this program must display Appropriate
 * Legal Notices, as required under Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License, a covered work must retain the producer
 * line in every PDF that is created or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing a commercial license. Buying such a license is
 * mandatory as soon as you develop commercial activities involving the iText software without disclosing the source
 * code of your own applications. These activities include: offering paid services to customers as an ASP, serving PDFs
 * on the fly in a web application, shipping iText with a closed source product.
 *
 * For more information, please contact iText Software Corp. at this address: sales@itextpdf.com
 */
package com.itextpdf.tool.xml.html;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import com.itextpdf.text.*;
import com.itextpdf.text.html.HtmlUtilities;
import com.itextpdf.text.pdf.PdfBody;
import com.itextpdf.tool.xml.NoCustomContextException;
import com.itextpdf.tool.xml.Tag;
import com.itextpdf.tool.xml.WorkerContext;
import com.itextpdf.tool.xml.css.CSS;
import com.itextpdf.tool.xml.exceptions.LocaleMessages;
import com.itextpdf.tool.xml.exceptions.RuntimeWorkerException;
import com.itextpdf.tool.xml.html.pdfelement.NoNewLineParagraph;
import com.itextpdf.tool.xml.pipeline.ctx.MapContext;
import com.itextpdf.tool.xml.pipeline.end.PdfWriterPipeline;

/**
 * @author redlab_b
 *
 */
public class Body extends AbstractTagProcessor {

	/*
	 * (non-Javadoc)
	 *
	 * @see com.itextpdf.tool.xml.TagProcessor#content(com.itextpdf.tool.xml.Tag, java.util.List,
	 * com.itextpdf.text.Document, java.lang.String)
	 */
	@Override
	public List<Element> content(final WorkerContext ctx, final Tag tag, final String content) {
		List<Chunk> sanitizedChunks = HTMLUtils.sanitize(content, false);
		List<Element> l = new ArrayList<Element>(1);
        NoNewLineParagraph sanitizedNoNewLineParagraph = new NoNewLineParagraph();
        for (Chunk sanitized : sanitizedChunks) {
            Chunk c = getCssAppliers().getChunkCssAplier().apply(sanitized, tag);
            sanitizedNoNewLineParagraph.add(c);
        }
        if (sanitizedNoNewLineParagraph.size() > 0) {
            try {
                l.add(getCssAppliers().apply(sanitizedNoNewLineParagraph, tag, getHtmlPipelineContext(ctx)));
            } catch (NoCustomContextException e) {
                throw new RuntimeWorkerException(LocaleMessages.getInstance().getMessage(LocaleMessages.NO_CUSTOM_CONTEXT), e);
            }
        }
		return l;
	}

    @Override
    public List<Element> start(final WorkerContext ctx, final Tag tag) {
        List<Element> l = new ArrayList<Element>(1);
        try{
            Map<String, String> css = tag.getCSS();
            if (css.containsKey(CSS.Property.BACKGROUND_COLOR)){
                MapContext pipeline = (MapContext) ctx.get(PdfWriterPipeline.class.getName());
                if (pipeline != null){
                    Document document = (Document) pipeline.get(PdfWriterPipeline.DOCUMENT);
                    Rectangle rectangle = new Rectangle(document.left(), document.bottom(), document.right(), document.top(), document.getPageSize().getRotation());
                    rectangle.setBackgroundColor(HtmlUtilities.decodeColor(css.get(CSS.Property.BACKGROUND_COLOR)));
                    PdfBody body = new PdfBody(rectangle);
                    l.add(body);
                }

            }
        }
        catch (NoCustomContextException e){
        }
        return l;
    }
}
